LogoHow To CSV

CSV to JSON

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Supported formats: .csv,.xlsx,.xls,.xlsm,.xlsb,.tsv

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AboutCSV to JSON

Convert CSV rows into structured JSON arrays or objects.Category: Conversion & Export
Seeding databases from spreadsheetsCreating mock API responsesMigrating legacy data to modern apps
The CSV to JSON tool is compatible with:REST APIsMongoDBReact/Vue Apps.Run Schema Detect first if you're unsure how a messy CSV's columns should type, then feed the confirmed schema into this converter to get clean, correctly-typed JSON for your API or database seed.
Developers love this tool. Transform flat CSV data into hierarchical JSON for your APIs, NoSQL databases (MongoDB), or frontend applications. Supports custom nesting, data typing (numbers vs strings), and minification.

Frequently Asked Questions:

Can I control nesting and number vs string typing?

Yes, the converter supports custom nesting and data typing so numeric-looking values don't get stuck as strings unless you want them to.

Is the output minified or pretty-printed?

Both are supported, you can generate compact or readable JSON depending on your use case.


Built for developers who need spreadsheet data in code without hand-writing a parser.